Alccontrol - Toshiba teli BC Series Instruction Manual

ALCControl

This section describes ALCControl feature.
This camera series provides some registers to adjust the various parameter of ALC operation.
ALCPhotometricAreaSize defines photometric area size for measuring luminance.
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This area size is reffered in AE, AGC and AWB.
ALCExposureValue defines a correction value for a convergence value.
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Final convergence value is determined by the following formula.
Final convergence value = 84(Reference Luminance) * 2
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100% (H:100% x V:100%)
64% (H:80% x V:80%)
16% (H:40% x V:40%)
ALCPhotometricAreaSize (e.g. 100%, 80%, 40%)
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(ALCExposureValue/10)
D4272607A
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